[PATCH V3 3/3] ARM: clk-imx6q: Add missing lvds and anaclk clock to the clock tree

Shengjiu Wang
2014-08-08T07:02:49Z

anaclk1 and anaclk2 is the clock source for lvds1_in and lvds2_in. lvds1_in
and lvds2_in can be used to provide external clock source to the internal
pll, such as pll4_audio and pll5_video.
pll4_audio and pll5_video can have multiple source, not only "osc", so
add them.

Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
---
arch/arm/mach-imx/clk-imx6q.c | 18 ++++++++++++++----
include/dt-bindings/clock/imx6qdl-clock.h | 8 +++++++-
2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 1d6dd59..c1f285c 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -73,6 +73,7 @@ static const char *lvds_sels[] = {
"pll4_audio", "pll5_video", "pll8_mlb", "enet_ref",
"pcie_ref_125m", "sata_ref_100m",
};
+static const char *pll_av_sels[] = { "osc", "lvds1_in", "lvds2_in", "dummy", };

static struct clk *clk[IMX6QDL_CLK_END];
static struct clk_onecell_data clk_data;
@@ -119,6 +120,9 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0);
clk[IMX6QDL_CLK_CKIH] = imx_obtain_fixed_clock("ckih1", 0);
clk[IMX6QDL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0);
+ /* Clock source from external clock via ANACLK1/2 PADs */
+ clk[IMX6QDL_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0);
+ clk[IMX6QDL_CLK_ANACLK2] = imx_obtain_fixed_clock("anaclk2", 0);

np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
base = of_iomap(np, 0);
@@ -136,8 +140,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
clk[IMX6QDL_CLK_PLL1_SYS] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1_sys", "osc", base, 0x7f);
clk[IMX6QDL_CLK_PLL2_BUS] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2_bus", "osc", base + 0x30, 0x1);
clk[IMX6QDL_CLK_PLL3_USB_OTG] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3_usb_otg", "osc", base + 0x10, 0x3);
- clk[IMX6QDL_CLK_PLL4_AUDIO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4_audio", "osc", base + 0x70, 0x7f);
- clk[IMX6QDL_CLK_PLL5_VIDEO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5_video", "osc", base + 0xa0, 0x7f);
+ clk[IMX6QDL_CLK_PLL4_AUDIO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4_audio", "pll4_sel", base + 0x70, 0x7f);
+ clk[IMX6QDL_CLK_PLL5_VIDEO] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5_video", "pll5_sel", base + 0xa0, 0x7f);
clk[IMX6QDL_CLK_PLL6_ENET] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6_enet", "osc", base + 0xe0, 0x3);
clk[IMX6QDL_CLK_PLL7_USB_HOST] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7_usb_host","osc", base + 0x20, 0x3);

@@ -169,6 +173,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)

clk[IMX6QDL_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
clk[IMX6QDL_CLK_LVDS2_SEL] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
+ clk[IMX6QDL_CLK_PLL4_SEL] = imx_clk_mux("pll4_sel", base + 0x70, 14, 2, pll_av_sels, ARRAY_SIZE(pll_av_sels));
+ clk[IMX6QDL_CLK_PLL5_SEL] = imx_clk_mux("pll5_sel", base + 0xa0, 14, 2, pll_av_sels, ARRAY_SIZE(pll_av_sels));

/*
* lvds1_gate and lvds2_gate are pseudo-gates. Both can be
@@ -176,8 +182,12 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
* the "output_enable" bit as a gate, even though it's really just
* enabling clock output.
*/
- clk[IMX6QDL_CLK_LVDS1_GATE] = imx_clk_gate("lvds1_gate", "lvds1_sel", base + 0x160, 10);
- clk[IMX6QDL_CLK_LVDS2_GATE] = imx_clk_gate("lvds2_gate", "lvds2_sel", base + 0x160, 11);
+ clk[IMX6QDL_CLK_LVDS1_GATE] = imx_clk_gate2("lvds1_gate", "lvds1_sel", base + 0x160, 10);
+ clk[IMX6QDL_CLK_LVDS2_GATE] = imx_clk_gate2("lvds2_gate", "lvds2_sel", base + 0x160, 11);
+ clk[IMX6QDL_CLK_LVDS1_IN] = imx_clk_gate2("lvds1_in", "anaclk1", base + 0x160, 12);
+ clk[IMX6QDL_CLK_LVDS2_IN] = imx_clk_gate2("lvds2_in", "anaclk2", base + 0x160, 13);
+ imx_clk_gate2_exclusive(clk[IMX6QDL_CLK_LVDS1_GATE], clk[IMX6QDL_CLK_LVDS1_IN]);
+ imx_clk_gate2_exclusive(clk[IMX6QDL_CLK_LVDS2_GATE], clk[IMX6QDL_CLK_LVDS2_IN]);

/* name parent_name reg idx */
clk[IMX6QDL_CLK_PLL2_PFD0_352M] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0);
diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h
index 323e865..5519526 100644
--- a/include/dt-bindings/clock/imx6qdl-clock.h
+++ b/include/dt-bindings/clock/imx6qdl-clock.h
@@ -220,6 +220,12 @@
#define IMX6QDL_CLK_LVDS2_GATE 207
#define IMX6QDL_CLK_ESAI_IPG 208
#define IMX6QDL_CLK_ESAI_MEM 209
-#define IMX6QDL_CLK_END 210
+#define IMX6QDL_CLK_LVDS1_IN 210
+#define IMX6QDL_CLK_LVDS2_IN 211
+#define IMX6QDL_CLK_ANACLK1 212
+#define IMX6QDL_CLK_ANACLK2 213
+#define IMX6QDL_CLK_PLL4_SEL 214
+#define IMX6QDL_CLK_PLL5_SEL 215
+#define IMX6QDL_CLK_END 216

#endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */
--
1.7.9.5